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Question: I don't understand how intervals get their name!. Help!?
My guitar teacher said to think in terms of the fretboard!. Ok, I can get the numerical value of an interval, but how do I know if it's a major or a minor!? He probably explained it to me but it flew over my head lol!.Www@QuestionHome@Com


Best Answer - Chosen by Asker:
If you are looking at a Major 2nd interval (M2) it could be a C and a D!.

It helps to know your scales!. If the interval you are looking at comes from a C Major scale (or any major scale) it is Major!.


If you have a C, E flat, and a G it is minor!. A E flat is not in a C Major scale!. Make any sense!?Www@QuestionHome@Com

If you know your scales, that will help immensely!.

The way I was taught, is if it's minor, then it's part of the minor scale of the lower note!. For example, say you have a C and an A!. It would be a MAJOR sixth because the C MAJOR scale is C D E F G A B C!.

Now if you had C and Ab, then it would be a MINOR sixth because the C MINOR scale is C D Eb F G Ab Bb C!.

Since I've never played guitar I can't really help with the fretboard part!. If you have any knowledge of piano though then that can be a very useful way of figuring them out too!.

Then you always have diminshed and augmented intervals which are a little more complicated!.

The order always goes diminished, minor, major, augmented, with the exception of unison, 4th, 5th, and octave intervals because those go diminished, perfect, augmented!.

Few more examples:

C and F - Perfect 4th
- Since it's a unison, 4th, 5th or octave and it's within the scale, it's perfect!.

C and F# - Augmented 4th
- Since it's a 4th, it'd be perfect normally, but since the F is raised a half-step, it goes from perfect 4th to augmented 4th!.

G and Db - Diminished 5th
- Since it's a 5th, it'd be perfect normally, but since the D is lowered a half-step, it's diminished!.

C and Ebb - Diminished 3rd
- C to E would be a major 3rd, lower the E a half-step it becomes C and Eb which would be a minor 3rd, and if the Eb is lowered again it becomes Ebb which is a diminished 3rd!. (If heard and not seen, it would sound like C and D, just written differently!.)

Hope some of this helps!
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Uhmm well it's been explained pretty much, but if you're playing the chords you can tell if it's a major because it sounds happy but if it's a minor it sounds sad, that's just for the basic "Is it a major or minor!?" type of thing lol!.Www@QuestionHome@Com